/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.tests.aop.interceptor;

import org.aopalliance.intercept.MethodInterceptor;
import org.aopalliance.intercept.MethodInvocation;

/**
 * Trivial interceptor that can be introduced in a chain to display it.
 *
 * @author Rod Johnson
 */
public class NopInterceptor implements MethodInterceptor {

    private int count;


    @Override
    public Object invoke(MethodInvocation invocation) throws Throwable {
        increment();
        return invocation.proceed();
    }

    protected void increment() {
        this.count++;
    }

    public int getCount() {
        return this.count;
    }


    @Override
    public boolean equals(Object other) {
        if (!(other instanceof NopInterceptor)) {
            return false;
        }
        if (this == other) {
            return true;
        }
        return this.count == ((NopInterceptor) other).count;
    }

    @Override
    public int hashCode() {
        return NopInterceptor.class.hashCode();
    }

}
